// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.

#include "db/version_edit.h"

#include "gtest/gtest.h"

namespace leveldb
{

    static void TestEncodeDecode(const VersionEdit &edit)
    {
        std::string encoded, encoded2;
        edit.EncodeTo(&encoded);
        VersionEdit parsed;
        Status s = parsed.DecodeFrom(encoded);
        ASSERT_TRUE(s.ok()) << s.ToString();
        parsed.EncodeTo(&encoded2);
        ASSERT_EQ(encoded, encoded2);
    }

    TEST(VersionEditTest, EncodeDecode)
    {
        static const uint64_t kBig = 1ull << 50;

        VersionEdit edit;
        for (int i = 0; i < 4; i++)
        {
            TestEncodeDecode(edit);
            edit.AddFile(3, kBig + 300 + i, kBig + 400 + i,
                         InternalKey("foo", kBig + 500 + i, kTypeValue),
                         InternalKey("zoo", kBig + 600 + i, kTypeDeletion));
            edit.RemoveFile(4, kBig + 700 + i);
            edit.SetCompactPointer(i, InternalKey("x", kBig + 900 + i, kTypeValue));
        }

        edit.SetComparatorName("foo");
        edit.SetLogNumber(kBig + 100);
        edit.SetNextFile(kBig + 200);
        edit.SetLastSequence(kBig + 1000);
        TestEncodeDecode(edit);
    }

} // namespace leveldb

int main(int argc, char **argv)
{
    testing::InitGoogleTest(&argc, argv);
    return RUN_ALL_TESTS();
}
